:root{--ink:#182438;--muted:#43536a;--blue:#2854da;--line:#c4cedc;--paper:#fff;--canvas:#f4f7fb;--rail:#111e33;--mono:Consolas,"SFMono-Regular",monospace}
*{box-sizing:border-box}body{margin:0;background:var(--canvas);color:var(--ink);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.65;overflow-wrap:anywhere}a{color:var(--blue);text-underline-offset:3px}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:default}img,svg,canvas,video{max-width:100%}img{height:auto}h1,h2,h3{line-height:1.2;letter-spacing:-.035em}h1{font-size:clamp(2rem,4.2vw,4.25rem);max-width:960px;margin:.6rem 0 1.25rem;font-weight:650}h2{font-size:1.7rem;margin:2.5rem 0 1rem}h3{font-size:1.15rem;margin:0 0 .75rem}p{margin:0 0 1rem}li{margin:.4rem 0}code{font-family:var(--mono);font-size:.9em}pre{white-space:pre;overflow:auto;background:var(--rail);color:#e5edf9;padding:1.25rem;border-radius:8px;font-size:.88rem;max-width:100%}pre code{white-space:pre}table{width:100%;border-collapse:collapse;font-size:.94rem}th,td{text-align:left;padding:.9rem 1rem;border-bottom:1px solid var(--line);vertical-align:top}th{font-weight:650;background:#edf2f8}caption{text-align:left;font-weight:650;padding:1rem}summary{cursor:pointer;font-weight:600}details{border:1px solid var(--line);border-radius:8px;padding:1rem;margin:1rem 0}details[open] summary{margin-bottom:1rem}:focus-visible{outline:3px solid #204bb8;outline-offset:4px}html{scroll-padding-top:100px}.skip-link{position:fixed;top:-100px;left:20px;z-index:100;background:white;padding:12px}.skip-link:focus{top:8px}.lab-header{position:fixed;inset:0 0 auto;height:76px;z-index:30;background:white;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 32px}.wordmark{font-size:25px;letter-spacing:-1px;color:var(--ink);text-decoration:none;font-weight:750;display:flex;align-items:baseline;gap:12px}.wordmark span{font:11px var(--mono);letter-spacing:2px;color:var(--muted)}.header-note{font-size:14px;color:var(--muted)}.lab-menu{display:none;border:1px solid var(--line);background:white;border-radius:6px;padding:9px 12px;min-height:44px;font-size:14px}.lab-sidebar{position:fixed;top:76px;bottom:0;left:0;width:252px;background:var(--rail);color:#c4d0e5;padding:24px 16px;overflow-y:auto}.nav-group{margin-bottom:24px}.nav-group p{font:11px var(--mono);text-transform:uppercase;letter-spacing:1.6px;margin:0 14px 8px;color:#9faecc}.nav-group a{display:block;color:#d8e2f3;text-decoration:none;padding:9px 14px;font-size:14px;border-left:2px solid transparent;border-radius:0 5px 5px 0}.nav-group a:hover{background:#1d304d}.nav-group a[aria-current]{background:#243c62;color:white;border-left-color:#92b5ff}.rail-note{border-top:1px solid #31405a;margin:30px 14px 0;padding-top:20px;font-size:13px;color:#aab9d0}.rail-note a{display:block;margin-top:12px;color:#cbdcff}.lab-main{margin:76px 0 0 252px;padding:48px clamp(24px,4vw,68px) 24px;max-width:1570px;min-height:calc(100vh - 76px)}.page-topline{font:12px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);display:flex;justify-content:space-between;gap:16px;padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:30px}.page-lead{font-size:1.15rem;color:var(--muted);max-width:780px;line-height:1.7;margin-bottom:2rem}.research-intro{border-left:3px solid var(--blue);padding:6px 0 6px 20px;max-width:820px;margin:2rem 0}.research-intro p:last-child{margin:0}.approach-list{border-top:1px solid var(--line);margin:2rem 0}.approach-row{display:grid;grid-template-columns:48px minmax(0,1fr) 160px;gap:20px;padding:26px 0;border-bottom:1px solid var(--line);align-items:start}.approach-index{font:16px var(--mono);color:var(--blue)}.approach-row h2{margin:0 0 .6rem;font-size:1.65rem}.approach-row h2 a{color:var(--ink);text-decoration:none}.approach-row h2 a:hover{color:var(--blue)}.approach-row p{max-width:650px;color:var(--muted);margin:0}.tag{display:inline-block;padding:5px 9px;border:1px solid var(--line);border-radius:4px;background:white;font:12px var(--mono);color:#455775;white-space:normal}.tag.measured{color:#224baa;background:#edf3ff;border-color:#c7d7fa}.tag.proposed{color:#77511b;background:#fff5e5;border-color:#ecd8b7}.paper,.panel{background:white;border:1px solid var(--line);padding:clamp(20px,3vw,36px);border-radius:8px;margin:24px 0}.paper h2:first-child,.panel h2:first-child{margin-top:0}.split{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.split>.panel{margin:0}.note{background:#eaf0fc;border-left:3px solid #547de0;padding:18px 22px;margin:24px 0}.note p:last-child{margin-bottom:0}.note.warning{background:#fff5e7;border-color:#d69b3d}.actions{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0}.button,.lab-page .btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 18px;border:1px solid var(--blue);border-radius:5px;background:var(--blue);color:white;text-decoration:none;font-weight:600;font-size:.94rem;line-height:1.4}.button.secondary{background:white;color:var(--blue)}.table-scroll{max-width:100%;overflow-x:auto;margin:20px 0}.metric-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,160px),1fr));gap:16px;margin:24px 0}.metric{padding:18px;background:white;border:1px solid var(--line);border-radius:6px}.metric strong{display:block;font-size:1.65rem;letter-spacing:-.03em}.metric span{font-size:14px;color:var(--muted)}.lab-footer{border-top:1px solid var(--line);margin-top:64px;padding:24px 0;display:flex;flex-wrap:wrap;gap:12px 28px;font-size:13px;color:var(--muted)}.lab-footer a{color:var(--muted)}.research-controls{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin:24px 0}.research-controls input,.research-controls select{padding:10px;border:1px solid var(--line);border-radius:5px;background:white;max-width:100%}.experiment{border-top:1px solid var(--line);padding:22px 0}.experiment h3{margin:.65rem 0}.experiment p{max-width:900px}.experiment[hidden]{display:none}.small{font-size:.88rem;color:var(--muted)}.diagram{font:15px var(--mono);display:flex;flex-wrap:wrap;gap:12px;align-items:center;padding:24px;background:#eaf0fc;border:1px solid #ccdaf5;border-radius:6px}.diagram span{padding:8px;background:white;border:1px solid var(--line)}.demo-page .demo-hero{display:none}.demo-page .demo-wrap{padding:0;max-width:none}.demo-page .domain-bar{justify-content:flex-start}.demo-page .trainer{grid-template-columns:minmax(0,340px) minmax(0,1fr);gap:24px}.demo-page .tf-wrap{grid-template-columns:minmax(0,1fr) 30px minmax(0,1fr)}.demo-page .tf-side{grid-column:1/-1}.demo-page .stat-row{grid-template-columns:repeat(2,minmax(0,1fr))}.demo-page .wrow{grid-template-columns:minmax(0,128px) minmax(0,1fr)}.demo-page .demo-wrap h2{letter-spacing:-.025em}.demo-page .chip{font-size:12px}.demo-page .reveal-card{max-height:calc(100dvh - 32px);overflow:auto}.demo-page .honesty{margin-top:36px}.demo-page .stile .l{font-size:12px}.demo-page .lab-main .session-tools{padding:18px;border:1px solid var(--line);background:white;border-radius:6px;margin:20px 0;display:flex;flex-wrap:wrap;align-items:center;gap:12px}.session-tools input{max-width:150px;padding:8px;border:1px solid var(--line);border-radius:4px}.demo-page .btn{width:auto}.session-status{flex-basis:100%;margin:0}.demo-page #evaluation-summary{font-size:14px;color:var(--muted)}.source-list li{margin:12px 0}
@media(min-width:1650px){.lab-main{margin-left:max(252px,calc((100vw - 1570px)/2 + 180px))}}@media(max-width:1100px){.approach-row{grid-template-columns:32px minmax(0,1fr)}.approach-row>.tag{grid-column:2}.demo-page .trainer{grid-template-columns:minmax(0,1fr)}.demo-page .card-col{width:100%;max-width:380px;margin:auto}.demo-page .ideal-wrap{grid-template-columns:minmax(0,1fr)}.split{grid-template-columns:minmax(0,1fr)}}@media(max-width:800px){.lab-header{height:68px;padding:0 16px}.wordmark{font-size:22px;gap:8px}.wordmark span{font-size:10px;letter-spacing:1px}.lab-menu{display:block}.header-note{display:none}.lab-sidebar{position:static;width:auto;display:none;margin-top:68px;padding:20px;max-height:calc(100dvh - 68px);overflow:auto}.lab-sidebar.open{display:block}.lab-main{margin:68px 0 0;padding:28px 20px 20px}.lab-sidebar.open+.lab-main{margin-top:0}.page-topline{font-size:11px;margin-bottom:22px}.page-lead{font-size:1.05rem}.approach-row{gap:12px;padding:22px 0}.approach-row h2{font-size:1.4rem}.paper,.panel{padding:20px}.demo-page .tf-wrap{gap:10px}.lab-footer{margin-top:40px}.research-controls{align-items:stretch}.research-controls input{width:100%}}@media(max-width:380px){.wordmark span{display:none}.lab-main{padding-inline:16px}.page-topline{flex-direction:column;gap:6px}.demo-page .tf-wrap{grid-template-columns:1fr 1fr}.demo-page .tf-arrow{display:none}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}@media print{.lab-header,.lab-sidebar,.lab-footer,.actions,.research-controls{display:none}.lab-main{margin:0;padding:0}body{background:white}a{color:inherit}}

.recorded-stage{position:relative;max-width:700px;margin:20px 0}.recorded-stage img{display:block;width:100%}#recorded-point{position:absolute;width:20px;height:20px;border:3px solid #cf3030;border-radius:50%;transform:translate(-50%,-50%)}#recorded-box{position:absolute;border:3px solid #14763e;background:rgba(30,160,70,.08);pointer-events:none}.recorded-stage span{pointer-events:none}.research-controls label{min-width:0;max-width:100%}.research-controls select{max-width:100%}
@media(max-width:900px){.demo-page .tf-wrap{grid-template-columns:repeat(2,minmax(0,1fr))}.demo-page .tf-arrow{display:none}}
.home-page .lab-main{max-width:1180px}.home-page h1{font-size:2.5rem;letter-spacing:-.025em;margin-top:0}.home-page .page-lead{font-size:1rem;margin-bottom:2rem}.home-notes{max-width:760px}.home-notes h2{font-size:1.4rem;margin-top:2.25rem}.home-notes h3{font-size:1rem;letter-spacing:0;margin-top:1.6rem}.home-notes h3 a{color:var(--ink)}.home-notes p{margin-bottom:1.1rem}

/* Short explanations, with compact examples and optional technical detail. */
.lab-page .lab-main{max-width:1120px;padding-top:32px}.lab-page h1{font-size:clamp(1.75rem,2.9vw,2.45rem);letter-spacing:-.025em;margin:0 0 12px}.lab-page .page-lead{font-size:1.02rem;max-width:730px;margin-bottom:24px}.page-status{font-size:14px;color:var(--muted);margin:0 0 10px}.lab-page h2{font-size:1.3rem;margin:28px 0 12px}.lab-main>p{max-width:780px}.paper,.panel{background:none;border:0;border-radius:0;padding:0;margin:24px 0}.plain-details .paper h2{font-size:1.1rem}.plain-details .note{padding:12px 16px}.next-links{font-size:.94rem;margin-top:22px}.topic-links{display:grid;gap:0;max-width:730px;margin:24px 0}.topic-links>a{display:flex;align-items:center;gap:16px;text-decoration:none;color:var(--ink);padding:16px 0;border-bottom:1px solid var(--line)}.topic-links>a:first-child{border-top:1px solid var(--line)}.topic-links>a:hover strong{text-decoration:underline}.topic-links strong{display:block;margin-bottom:3px;color:var(--blue)}.topic-links>a>span{font-size:.94rem;color:var(--muted)}.topic-links .guide-icon{flex-shrink:0;width:34px;height:34px;margin:0}.guide-icon{display:block;width:48px;height:48px;margin:0 auto 10px}.small-example{margin:20px 0 24px;padding:16px;max-width:480px;background:#fff;border:1px solid var(--line);border-radius:6px}.example-items{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;text-align:center}.example-items>div{min-width:0}.example-items span{font-size:.87rem;line-height:1.45;display:block}.example-items strong{font-weight:600}.small-example figcaption{font-size:.875rem;color:var(--muted);margin-top:14px;line-height:1.45}.decision-example{display:flex;align-items:center;gap:18px;justify-content:center}.sample-message{border:1px solid #c6d2e2;background:#f4f7fb;padding:10px 12px;border-radius:8px;font-size:.9rem}.answer-label{background:#e3edfa;color:#274e84;padding:7px 12px;border-radius:4px;font-size:.9rem}.mini-window{position:relative;width:220px;max-width:100%;border:1px solid #c6d2e2;border-radius:5px;background:#fafbfd;padding:12px;min-height:112px}.mini-window-title{font-size:13px;display:block;margin-bottom:14px}.fake-line{display:block;height:4px;width:60%;background:#d5dde9;margin:7px 0}.fake-line.short{width:43%}.mock-save{position:absolute;right:16px;bottom:14px;border:2px solid #356c9f;color:#264b75;background:#e4eefb;padding:3px 14px;font-size:12px;border-radius:4px}.mock-save svg{position:absolute;right:-10px;bottom:-15px;width:23px;height:27px}.step-key{display:grid;grid-template-columns:1fr 3fr;font-size:.875rem;color:var(--muted);margin-bottom:7px}.processing-steps{display:grid;grid-template-columns:repeat(24,minmax(0,1fr));gap:3px}.processing-steps i{height:22px;background:white;border:1px dashed #596b80;border-radius:2px}.processing-steps i.used{background:#315d8e;border:1px solid #315d8e}.simple-timeline{list-style:none;padding:0;margin:24px 0;max-width:740px}.simple-timeline li{display:grid;grid-template-columns:80px minmax(0,1fr);gap:18px;border-left:2px solid #bbcadc;margin:0;padding:10px 0 18px 18px}.simple-timeline strong{font-size:.9rem}.reading-list,.page-links{padding-left:20px}.reading-list li{margin:16px 0}.reading-list span{display:block;color:var(--muted);font-size:.94rem}.page-links{columns:2;column-gap:30px;max-width:750px}.page-links li{break-inside:avoid}.lab-page details.experiment{border:0;border-top:1px solid var(--line);border-radius:0;margin:0;padding:13px 0}.experiment summary{font-size:.95rem;line-height:1.5;font-weight:500}.experiment summary small{display:block;margin:4px 0 0 18px;font-size:.875rem;color:var(--muted);font-weight:400}.experiment>p{font-size:.93rem}.result-summary{max-width:760px;margin:28px 0}.result-summary h2{margin-bottom:12px}.result-summary .table-scroll{margin:12px 0}.hit-row{display:flex;gap:8px;margin:12px 0}.hit-row span{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;font-weight:600}.hit{color:#37694a;background:#e3eee7}.miss{color:#914f3d;background:#f6e8e2}.recorded-stage{max-width:100%}.manual-coordinate #coordinate-stage{max-width:500px!important}.demo-page .trainer{display:block}.demo-page .card-col{max-width:280px;margin:auto}.demo-page .rate-btn{width:60px;height:44px;border-radius:7px;font-size:1rem}.demo-page .domain-bar{margin-top:20px}.demo-page .model-col{margin:20px 0}.demo-page .model-col .stat-row{margin-top:16px}.demo-page .op-section{margin:16px 0;padding:16px}.demo-page .op-section summary{font-size:1rem}.demo-page .op-lead{font-size:.94rem;margin-top:14px}.demo-page .ideal-card{max-width:180px;margin:auto}.demo-page .tf-wrap{max-width:600px}.demo-page .al-box{margin-top:12px}.demo-page .keys-hint,.demo-page .reveal-hint{font-size:.875rem;color:var(--muted)}.demo-page .session-tools{margin:12px 0 0!important}.demo-page .session-tools label{font-size:.9rem}.demo-page .wchart{max-width:600px}.lab-page .lab-footer{margin-top:40px}
@media(max-width:600px){.page-links{columns:1}.small-example{padding:14px}.example-items{gap:8px}.example-items span{font-size:.875rem}.guide-icon{width:42px;height:42px}.simple-timeline li{grid-template-columns:64px minmax(0,1fr);gap:12px;padding-left:12px}.decision-example{gap:12px}.sample-message{padding:8px;font-size:.82rem}.answer-label{padding:6px 9px;font-size:.82rem}}
.demo-page .rate-row{gap:8px}.demo-page .rate-row button{flex:0 0 auto;white-space:nowrap;min-height:44px}.demo-page .rate-row .small-btn{min-width:48px;padding:5px 8px}

/* Readable controls and focus indicators on all current lab pages. */
.lab-page { --primary-color:var(--blue); --text-primary:var(--ink); --text-secondary:var(--muted); }
.lab-page input, .lab-page select, .lab-page textarea { color:var(--ink); background:white; max-width:100%; border-color:#718198; }
.lab-page input::placeholder, .lab-page textarea::placeholder { color:var(--muted); opacity:1; }
.lab-page button { color:var(--ink); }
.lab-page .button, .lab-page .btn { color:white; }
.lab-page .button.secondary { color:var(--blue); }
.lab-menu, .small-btn, .domain-btn { border-color:#718198; }
.lab-page :focus-visible { outline:3px solid #204bb8; outline-offset:3px; box-shadow:0 0 0 3px white; }
.lab-sidebar :focus-visible { outline-color:#afccff; box-shadow:none; }
.lab-page :is(a,button,input,select,textarea,summary,[tabindex]) { scroll-margin-block:100px 24px; }
.lab-page summary { padding-block:4px; }
.lab-page button, .lab-page select, .lab-page input:not([type=checkbox]):not([type=range]) { min-height:44px; }
.lab-page button:disabled { opacity:1; color:#526078; background:#e5eaf1; border-color:#8793a4; }
.demo-page .card-col { overflow:visible; }
.demo-page .rate-row { flex-wrap:wrap; }
.demo-page .rate-btn { width:auto; min-width:60px; height:auto; }
.demo-page .stile .v, .demo-page .slider-row .sl { white-space:normal; }
.demo-page .wlabel { white-space:normal; overflow:visible; text-overflow:clip; }
.demo-page .whead { flex-wrap:wrap; gap:8px; font-size:.8rem; }
.demo-page .wrow { grid-template-columns:minmax(0,1fr) minmax(40px,1fr) auto; }
.demo-page .wvalue { font-size:.8rem; font-variant-numeric:tabular-nums; }
.demo-page .mini figcaption, .demo-page #reveal-compare figcaption { font-size:.875rem; }
.demo-page #pass-btn { border-color:#a45409; }
.demo-page #tf-changes .down { color:#a45409; }
.demo-page .reveal-card { min-width:0; }
.demo-page .al-box input { flex-shrink:0; }
.demo-page #card { overflow:hidden; }
.demo-page .reveal-hint { min-height:2.9em; }
.demo-page .session-tools > * { min-width:0; max-width:100%; }
.demo-page .session-tools input[type=file] { width:100%; }
#recorded-point, #coordinate-marker, #recorded-box { box-shadow:0 0 0 2px white,0 0 0 3px #182438; }
@media(max-width:600px) {
  .demo-page .stat-row { grid-template-columns:repeat(auto-fit,minmax(min(100%,130px),1fr)); }
  .demo-page .wrow { grid-template-columns:minmax(0,1fr) auto; }
  .demo-page .wtrack { grid-column:1; grid-row:2; }
  .demo-page .wvalue { grid-column:2; grid-row:2; }
  .demo-page .wlabel { grid-column:1/-1; text-align:left; }
}
@media(forced-colors:active) {
  .processing-steps i { border:1px dashed CanvasText; }
  .processing-steps i.used { background:CanvasText; border:1px solid CanvasText; forced-color-adjust:none; }
  .lab-page :focus-visible { outline-color:Highlight; }
  .domain-btn.active, .nav-group a[aria-current] { outline:2px solid Highlight; outline-offset:-2px; }
  #recorded-point, #coordinate-marker, #recorded-box { outline:2px solid CanvasText; }
}